Register
Login
Username
Password
Login
forgot your password?
Home
Forum
+0
Formulary
Maths
Help
Complex Numbers
Integral Calculus
Differential Calculus
Equations
Graphs
Linear Algebra
Number theory
Percent
Standard Functions
Statistics
Trigonometry
Unit Conversion
Units
About
Imprint
Privacy Policy
Terms of Service
Credits
Google+
Facebook
Contact Email
Post New Question
All Questions
+0
237665 Questions
0
544
2
+22
what is Br e- config beginning with closest noble gas?
what is Br e- config beginning with closest noble gas?
●
●
helloxx
May 12, 2021
0
569
2
+22
what is ca+ electon config beginning with closest noble gas?
what is ca+ electon config beginning with closest noble gas?
●
●
helloxx
May 12, 2021
0
468
1
HELP PLEASE
Show that (n−1 r−1) +( n−1 r ) = (n r)
this is combinations
I would apperatice your help :D
●
Guest
May 12, 2021
0
586
2
Probability
There are 17 boys and 15 girls in a Math 30 class. The teacher is selecting 7 students to represent the school on the student advisory council.
Determine the probability, to the nearest hundredth of a percentage, that at most 2 boys will be selected.
read more ..
●
●
Guest
May 12, 2021
0
974
2
A radio transmission tower is 150 feet tall. How long should a guy wire be if
A radio transmission tower is 150 feet tall. How long should a guy wire be if it is to be attached 5 feet from
the top and is to make an angle of 20° with the ground?
a. 159.6 ft
c. 154.3 ft
b. 424.0 ft
d. 438.6 ft
<
read more ..
●
●
Guest
May 12, 2021
+1
586
2
solve the equation on the interval 0 ≤ θ < 2π
solve the equation on the interval 0 ≤ θ < 2π
sin^(2)(2θ )=1
●
●
Guest
May 12, 2021
0
470
2
help
help
●
●
Guest
May 12, 2021
0
658
2
Write the trigonometric expression as an algebraic expression in u.
Write the trigonometric expression as an algebraic expression in u.
sec (sin-1 u)
●
●
Guest
May 12, 2021
0
476
2
ITS URGENT!!!
https://web2.0calc.com/questions/seek-for-answer-thanks-a-lot
the answer is not b
●
●
Guest
May 12, 2021
0
657
2
+84
HELP ME!!
A ship is sailing east. At one point, the bearing of a submerged rock is
48°20′. After the ship has sailed 14.2 mi, the bearing of the rock has become
308°40′. Find the distance of the ship from the rock at the later point.
read more ..
●
●
ughh.abby
May 12, 2021
0
587
4
HELP!!! I need this ASAP it's due today!
Two lines, A and B, are represented by the equations given below:
Line A: x + y = 6
Line B: x + y = 4
Which statement is true about the solution to the set of equations?
●
●
●
●
Guest
May 12, 2021
0
489
1
HELP!! Please I need this ASAP it's due today!
Two lines, C and D, are represented by the equations given below:
Line C: y = x + 10
Line D: y = 3x + 2
Which of the following shows the solution to the system of equations and explains why?
●
Guest
May 12, 2021
0
485
2
Probability
Two cards are drawn without replacement from a standard deck of 52 cards. Determine the probability that neither card is black.
Thank you for the help!
●
●
Guest
May 12, 2021
0
460
2
Train Math Problem
The back of a 400-meter long train traveling at 60 kilometers per hour exits a tunnel exactly 3 minutes after the nose of the train enters the tunnel. How long is the tunnel?
●
●
Guest
May 12, 2021
0
516
2
algebra
What is the constant term of the expansion of (6x + 1/(3x))^8?
●
●
Guest
May 12, 2021
+2
850
4
+201
How many non-congruent triangles with perimeter $15$ inches are there whose side lengths are all integer numbers of inches?
How many non-congruent triangles with perimeter 15 inches are there whose side lengths are all integer numbers of inches?
●
●
●
●
mathisopandcool
May 12, 2021
0
477
1
help
help
ElectricPavlov
●
Guest
May 12, 2021
0
545
2
Need help
You are choosing between two different cell phone plans. The first plan charges a rate of 26 cents per minute. The second plan charges a monthly fee of $29.95 plus 11 cents per minute. How many minutes would you have to use in a month in order
read more ..
●
●
Guest
May 12, 2021
0
600
3
Dkskks
How do I type a exact fraction not like 1/2
●
●
●
Guest
May 12, 2021
0
435
1
Pls help
There are some coloured rubber bands in a box. 3/8 of them are blue, 1/4 of them are re and 5/6 of the remainder are yellow. There are 20 yellow rubber bands. Find the total number of rubber bands in the box.
●
Guest
May 12, 2021
0
551
1
Help needed
I'm a bit confused about this one
Three people, Bob, Anne, and Liz have applied for the same job and one of them will get the job. Based on experience, Bob has a 30% chance of getting the job and Anne has a 38% chance of getting the job.
read more ..
●
Guest
May 12, 2021
+1
585
2
+137
A difficult inequality!
Let $a,$ $b,$ and $c$ be positive real numbers such that $a > b$ and $a + b + c = 4.$
Find the minimum value of $4a + 3b + \frac{c^3}{(a - b)b}.$
read more ..
●
●
HighSchoolDx
May 12, 2021
+2
577
3
+102
Vertex
I've heard that in the quadratic form of , is the vertex of the parabola. Can somebody explain why that works? Thanks!
AnxiousLlama
●
●
●
AnxiousLlama
May 12, 2021
0
478
2
+12
Help
There are some apple-flavoured and lemon-flavoured sweets in a jar. If 75 apple-flavoured sweets are removed from the jar, the total number of sweets left with be 6 times the number of apple-flavoured sweets left. If 60 lemon-flavoured sweets are remove
read more ..
●
●
TTVTrash49
May 12, 2021
«
latest
9505
9504
..
7700
7699
7698
7697
7696
..
2
1
»
Post New Question
0 Online Users
Top Users
+130536
CPhill
moderator
+33665
Alan
moderator
+15127
asinus
moderator
+2234
Bosco
+1808
blackpanther
+850
cooIcooIcooI17
+762
history
+448
HiylinLink
+267
CInsbstnkng
+114
ikleyn
+113
thatgirlaj
Sticky Topics
Some guidelines for question askers.
What is Happening 5
Again a number puzzle. Multiply in writing.
Loads of fun printable number and logic puzzles
¤¤¤¤Welcome To Web2.0calc¤¤¤¤
How to display latex properly
Feature Questions 1 - Started 8th May 19
How to upload a picture.
If a question is ticked that does not mean you cannot continue it.
Should you consider anything before you answer a question?
Geometry Thread
PUZZLES
LaTex Coding
/calculator/bsh9ex1zxj
Historical post!
What is happening? Wrap #4
Great Questions to Learn From 2
Great Answers to Learn From
Reference Material
Information for new people.